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What is this research about?

This study aims to understand people’s experiences and motivations for using psychedelic drugs, such as LSD, psilocybin (e.g., magic mushrooms), DMT and mescaline. We are particularly interested in the experiences of people who have microdosed with LSD or psilocybin, or have used psychedelics to help with issues around mental and physical health, alcohol and other drug use, or for personal or spiritual development.


Who can participate?

We are looking for participants who have ever used psychedelic drugs (for any purpose) and are at least 16 years of age. People from any country can take part.


What does participation involve?

If you decide to take part in the research, we will ask you to complete an online questionnaire. The questionnaire will ask you questions about your experiences and motivations for using psychedelics, any benefits and difficulties you have experienced, and things you have done or currently do to reduce the chances of experiencing harms. It should take around 15-20 minutes to complete.


You will also be invited to provide your contact details so we can contact you in 6 months to participate in a follow-up survey. If you do not want to provide your contact details, you can participate anonymously and not provide your details.


Who is conducting this research?

This study is being conducted by the following researchers:

Dr Toby Lea, German Institute for Addiction and Prevention Research, Cologne, Germany, & Centre for Social Research in Health, UNSW Sydney, Australia

Nicole Amada, PhD Candidate in Psychology, City University of New York, USA

Dr Henrik Jungaberle, Founder and Executive Director, MIND European Foundation for Psychedelic Science, Berlin, Germany

Dr Henrike Dirks, Department of Addiction Medicine, LVR Clinic Essen, University of Duisburg-Essen, Germany

Professor Daniel Deimel, German Institute for Addiction and Prevention Research, Cologne, Germany


This study is funded by a postdoctoral research fellowship from the Alexander von Humboldt Foundation, Germany. The study has received ethical approval from the University of Duisburg-Essen (18-8215-BO). We thank The Third Wave, MIND and psychedelic societies internationally for supporting this research. 


What are the possible risks and benefits?

We don’t expect this questionnaire to cause any harm or discomfort. However, if you experience feelings of distress as a result of participation you can let the researchers know and we will provide you with assistance. We will also provide some links to websites that provide information about safer drug use and mental health at the end of the survey.


The results of this study will be used to improve knowledge of the ways in which people use psychedelics. We hope that this information can be used to provide better information and education to people using psychedelic drugs, whether that be for therapeutic, self-enhancement, recreational or other purposes. We would also like to see the findings used to develop better drug policies and services for people who use psychedelics.


How can I find out the results?

The researchers intend to report the results of the study in a variety of ways, including journal articles, conferences presentations and community feedback sessions. All information published will be done in a way that will not identify you. If you would like to receive a copy of the results you can provide your email address at the end of the survey.


Data protection

Submission of the online questionnaire is an indication of your consent. By clicking the ‘I agree to participate’ button you are providing your permission for the researchers to collect and use information about you for the research. We will store all survey data in a non-identifiable format on secure servers. If you provide your contact details to participate in a follow-up survey, your data will be matched using your email address. However, your email address will be stored completely separate to your survey data in a password-protected file, which will ensure that your responses remain confidential. Your IP address will not be recorded and cannot be viewed by the researchers. We will not collect any information about you that allows your identification by third parties. Email addresses will be deleted after follow-up is completed. Survey data will be stored for 10 years, consistent with legal requirements.


If you consent to participate, you may withdraw at any time. You can do this by closing the browser window. If you have completed the questionnaire and provided an email address, you may also contact the researchers and request that your data be destroyed.


If you would like to withdraw your consent to participate, please contact Dr Toby Lea,

The data protection officer responsible for the study is Ms Ursula Söntgen,


What if I have further questions about my involvement in the research?

If you would like further information or if you have any problems which may be related to your involvement in the study, you can contact Dr Toby Lea,


What if I have a complaint or concern about the research?

If you have a complaint regarding any aspect of the study or the way it is being conducted, please contact the North Rhine-Westphalia Commissioner for Data Protection and Freedom of Information,


I understand what the survey is about and agree to participate.